| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] years [pers pn] [verb] | 142 |
|
| 2 | four years [pers pn] [verb] | 49 |
|
| 3 | [prep] four years [verb] | 25 |
|
| 4 | [prep] four [pers pn] [verb] | 17 |
|
| 5 | [prep] four years [pers pn] | 16 |
|
